Plate tectonics

Plate tectonics is a concept of geology which explains the phenomenon of continental drift. Vexillium's surface is divided in a number of plates which float on a layer of molten rock (magma) and - albeit at extremely slow pace of millimetres per year - move away or push against each other. These movements are responsible for earthquakes, volcanic activity, mountain-building, and oceanic trench formation, which are phenomena that occur along plate boundaries - called faults.

Plate tectonics was long theorized by geologists all arround Vexillium, but has only recently been confirmed, thanks to a team of scientists from Porto Capital, in February 1st 306.